Powerhorse 11000ES Spec Review

The Powerhorse 11000ES is a powerful open frame portable generator with a rated wattage of 8400 W and a starting wattage of 11000 W.

CompareShortlistShortlistedRemoved from shortlist 9

Powerhorse 11000ESPowerhorse 11000ESPowerhorse 11000ESPowerhorse 11000ES
Set Price Alert
Notify me when the price drops
Set an alert for the Powerhorse 11000ES - Current lowest price: $1,399.99
Northern Tool logo Northern Tool
Price History
Price history for the Powerhorse 11000ES
Latest updates:
  • $1,399.99 - February 18, 2021
  • $1,249.99 - December 17, 2020
  • $1,279.99 - November 24, 2020
Data source: northerntool.com
Since: November 24, 2020
  • Highest Price: $1,399.99 - February 18, 2021
  • Lowest Price: $1,249.99 - December 17, 2020


This Powerhorse Portable Generator delivers up to 11,000 Watts for tackling power-hungry chores at home or on the jobsite. Equipped with a 100% copper-wound generator head, this powerful generator can run continuously without overheating. Plus, you can safely run sensitive electronics, thanks to less than 5% total harmonic distortion.

Zoom on the Powerhorse 11000ES

In summary, the Powerhorse 11000ES is a powerful portable generator especially useful for:

    The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.

    Power & Run Time

    The Powerhorse 11000ES in use

    The Powerhorse 11000ES

    The Powerhorse 11000ES's core is the 457 cc OHV 4-stroke engine, which runs on gasoline. With an output of 120/240V, it provides a running wattage of 8400W and a peak wattage of 11000W.

    Enjoying a noise rating of 78 dBA (less noisy than a shower), this generator can be started thanks to a conventional pull-start mechanism, but also to a convenient and easy-to-use electric starter (battery not included).

    The 11000ES can operate for around 8.5 hours at 50% load with a full tank (fuel consumption around 0.78 GPH), due to its fuel capacity of 6.6 gallons.

    Delicate electronics can be plugged in an AC outlets safely, as the 11000ES generates a clean sine wave, reaching a <5% Total Harmonic Disruption (THD).


    The control panel includes the following 10 AC outlets:

    Four Duplexes 120V 20A (5-20R)
    120V 30A (L5-30R) receptacle
    120/240V 50A (14-50R) receptacle

    Furthermore, it has 1 DC outlet: there's a 12V 8A (cigarette lighter style) receptacle allowing you to easily charge your batteries.

    Even though this Powerhorse generator isn't quite RV Ready, its L5-30R receptacle allows an easy RV connection via an L5-30P to TT-30R adaptor.


    The dimensions of the Powerhorse 11000ES, which are L29.3 x W26.6 x H26.4 in, and its typical, open frame design provides stability and enables the generator to be raised above ground level. The design is ideal for rough environments and demanding outdoor use.

    Since the generator weighs 209 lbs, it will be incredibly difficult to manually lift it and transport it, even though it is technically considered to 'be portable' (in the sense that it is movable). However, this lack of maneuverability is compensated by its wheel kit and its folding handle, with which you can conveniently shift it, once it's on the ground.


    Panel of the Powerhorse 11000ES

    The 11000ES's control panel

    The 11000ES's status and activity may be monitored conveniently via the control panel, as it features a convenient voltmeter, which provides an easy way to monitor power output anytime.

    In addition to this info, the device’s light indicator will display if its oil levels are insufficient.

    Thanks to a built-in fuel gauge, the generator allows you to quickly, conveniently and easily check the gas level at a glance.

    From a security point of view, the generator is equipped with an overload protection (circuit breaker) and an automatic low oil shut-off, giving you a peace of mind during use.

    Besides the usual set of documentation and owner's manual (opens in a new tab) to get you promptly started, Powerhorse also included a tool kit in the 11000ES's packaging.


    The Powerhorse 11000ES is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.

    However, it features a spark arrestor, making it usable in forested areas.

    Product Videos

    The Powerhorse 11000ES versus other generators

    The following charts are provided to give you an idea of how some of the key specs of the Powerhorse 11000ES compare to generators of similar power (between 7500 and 8500 W).

    • At a weight of 209 pounds, the Powerhorse 11000ES places in the expected weight range of the generators in the 7500-8500 rated wattage range. If weight is your top priority, one of the champions in this power category is the Lifan LF8750iEPL, weighing just 185 pounds.
    • This generator, with its lowest possible noise rated at 78 dBA falls into the more noisy category, compared to other devise of a similar running wattage. If you’d prefer a less noisy device, one of the most quiet devices, which share the same power range with this one, is the Powermate DF7500E, whose lowest noise levels reach just 68 dBA.
    • The 11000ES’s autonomy is somewhat low end compared to devices of its power range, as it reaches only around 8.5 hours at 50% load on a full tank. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Firman H08053, as it provides around 12 hours.
    • Autonomy holds its importance, however, it is largely dependent on the generator’s fuel capacity and so, it is nonsensible to discuss it without mentioning fuel efficiency as well. This generator has an estimated fuel consumption of roughly 0.78 GPH (gallon per hour) at a 50% load, rendering it somewhat average compared to devices of a similar output. If not satisfied with the afore-mentioned fuel consumption, you may wish to check out the Pulsar PG10000B16. With a fuel consumption of as little as 0.55 GPH, it is one of the most efficient generators currently on the market.

    Price comparison

    As you can see from this interactive chart, when compared to other 7500-8500W generators, the Powerhorse 11000ES is on the average side of the price range.

    Therefore, this generator nicely fits in the expected budget for this kind of product.

    The bottom line

    • In the expected price range
    • Electric start
    • Clean sine wave
    • Decent weight (209 lbs)
    • Decent fuel efficiency
    • Battery not included
    • No remote start
    • Not CARB-compliant
    • On the noisy side (78 dBA)
    • Relatively low run time

    Do you own the Powerhorse 11000ES and agree (or disagree) with these strengths and weaknesses?

    Let us know and write your own review.

    Features and Specifications

    Parallel capableNo
    RV readyNo
    Engine457 cc OHV 4-stroke
    Starting systemRecoil, Electric
    VoltageAC: 120/240V 60 Hz, DC: 12V
    Running watts8400 W
    Starting watts11000 W
    Running amps (@120/240V)70/35 amps
    Peaks amps (@120/240V)91.7/45.8 amps
    Run time @50% load8.5 h
    Run time @25% loadUnknown
    GFCI outletsNo
    Covered outletsNo
    Automatic Voltage RegulationYes
    AC outlets
    • 4x Duplex 120V 20A (5-20R)
    • 1x 120V 30A (L5-30R)
    • 1x 120/240V 50A (14-50R)
    DC outlets1x 12V 8A (cigarette lighter style)
    Data centerVoltmeter
    IndicatorsLow oil
    Fuel tankSteel, 6.6 gal
    Fuel gaugeYes
    Weight209 lbs
    Approx. dimensions (L x W x H)29.3 x 26.6 x 26.4 in
    Noise (lower limit)78 dBA
    THD< 5%
    SecurityLow oil and overload protection
    Spark arrestorYes
    NeutralBonded to frame
    Accessories includedTool kit and wheel kit
    Warranty2 years
    Other model numbers750144

    Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.


    This form does not send us any personal data (not even your IP address)

    About Powerhorse

    Powerhorse is a trademarked brand name of gas-powered outdoor products owned and distributed by the Northern Tool & Equipment Company Inc. through their store locations and online. Powerhorse outdoor products include gas- and electric-powered tools including pressure washers, wood chippers/shredders, log splitters, electric generators and inverters. The product line also offers engines and water pumps. The brand's motto is "Power You Can Depend On".

    Warranty Information

    The Powerhorse 11000ES is covered under a warranty for up to 2 years. This warranty may be limited and may not cover all parts of the generator.
    For more information about the warranty of Powerhorse generators, please contact the Powerhorse Customer Support: 1-866-443-2576.

    Questions & Answers

    What can it power?
    Examples of items that can be simultaneously powered.
    The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our generator sizer.
    ItemRunning WattsStarting Watts
    At homeSump pump (1/2 hp)10502150
    Furnace fan (1/2 hp)8752350
    Refrigerator (energy star)1921192
    Electric range21002100
    Hair dryer18001900
    Rice cooker650650
    Pair of small speakers4545
    Total6712 W8187 W
    For campingRadiant heater13001300
    RV refrigerator180600
    Hair dryer18001900
    Electric grill16501650
    Microwave (1000 watts)15001500
    Slow cooker270270
    Total6700 W7120 W
    For workTable saw18004500
    Air compressor (1 hp)16006100
    Demolition hammer12601260
    Electric fence (25 miles)250250
    Bug zapper8080
    Total6390 W10890 W

    Couldn't find the right answer for you? Ask your own question.

    Your name and email address will not be publicly published. We only need them to be able to answer you directly

    We would love to know your opinion

    Leave a review

    Your total score

    Generator Bible
    Compare items
    • Total (0)

    You can compare as many generators as you wish. However, for the best results, we recommend you to compare only 2 generators at a time.